NAME OF COMMODITY: CAUSTIC SODA FLAKES 

SPECIFICATION(NAOH): 98%         

TEST ITEM: NAOH, CARBONIC ACID, SODIUM CHLORIDE, OXIDIZE THE IRON

ITEM: (OF METHOD OF ION EXCHANGE MEMBRANE)        TEST RESULT（%）

NAOH                                                        ≥ 98.5

NA₂CO₃                                                       ≤ 1.0

NACL                                                        ≤ 0.08

FE₂O₃                                                         ≤ 0.01

CONCLUSION: ACCORDS WITH STANDARD OF GB 209-2006

NOTES:

SAMPLER: ZHANG XIAOMING     

INSPECTOR: ZHANG XIAOMING 

CHECK: HAO ZHIHENG 

EXAMINE: HU WENLI

REMARKS: VALID: 2 YEARS